Hourly Weather | Today Tuesday, September 22, 2026
Plainfield, New Jersey
2 AM
Cloudy Night
55°
Feels Like 50°
1
Humidity: 72%
UV Index: 0
Wind: 9 mph
3 AM
Cloudy Night
54°
Feels Like 50°
1
Humidity: 72%
UV Index: 0
Wind: 9 mph
4 AM
Cloudy Night
54°
Feels Like 48°
1
Humidity: 73%
UV Index: 0
Wind: 9 mph
5 AM
Cloudy Night
52°
Feels Like 48°
1
Humidity: 76%
UV Index: 0
Wind: 9 mph
6 AM
Cloudy Night
52°
Feels Like 46°
1
Humidity: 78%
UV Index: 0
Wind: 9 mph
7 AM
Cloudy Weather
52°
Feels Like 46°
1
Humidity: 82%
UV Index: 0
Wind: 9 mph
8 AM
Cloudy Weather
52°
Feels Like 48°
0
Humidity: 79%
UV Index: 0
Wind: 9 mph
9 AM
Cloudy Weather
55°
Feels Like 52°
0
Humidity: 75%
UV Index: 1
Wind: 11 mph
10 AM
Cloudy Weather
57°
Feels Like 54°
0
Humidity: 72%
UV Index: 1
Wind: 11 mph
11 AM
Cloudy Weather
59°
Feels Like 57°
0
Humidity: 71%
UV Index: 1
Wind: 12 mph
12 PM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 68%
UV Index: 1
Wind: 12 mph
1 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 65%
UV Index: 1
Wind: 12 mph
2 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 62%
UV Index: 2
Wind: 12 mph
3 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 59%
UV Index: 2
Wind: 12 mph
4 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 57%
UV Index: 2
Wind: 12 mph
5 PM
Cloudy Weather
66°
Feels Like 63°
0
Humidity: 56%
UV Index: 1
Wind: 12 mph
6 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 55%
UV Index: 1
Wind: 12 mph
7 PM
Cloudy Night
63°
Feels Like 59°
1
Humidity: 59%
UV Index: 0
Wind: 11 mph
8 PM
Cloudy Night
61°
Feels Like 57°
7
Humidity: 60%
UV Index: 0
Wind: 11 mph
9 PM
Cloudy Night
59°
Feels Like 55°
7
Humidity: 62%
UV Index: 0
Wind: 11 mph
10 PM
Cloudy Night
57°
Feels Like 54°
7
Humidity: 65%
UV Index: 0
Wind: 11 mph
11 PM
Cloudy Night
57°
Feels Like 54°
7
Humidity: 65%
UV Index: 0
Wind: 11 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.01 µg/m³
  • PM10: 6.31 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.7 µg/m³
  • PM10: 5.86 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.24 µg/m³
  • PM10: 5.5 µg/m³
  • O3: 0.037 ppm
  • NO2: 3 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.72 µg/m³
  • PM10: 4.94 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.28 µg/m³
  • PM10: 4.16 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.11 µg/m³
  • PM10: 3.67 µg/m³
  • O3: 0.035 ppm
  • NO2: 2.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.14 µg/m³
  • PM10: 3.79 µg/m³
  • O3: 0.033 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.21 µg/m³
  • PM10: 4.26 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.28 µg/m³
  • PM10: 4.76 µg/m³
  • O3: 0.031 ppm
  • NO2: 4 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.39 µg/m³
  • PM10: 5.11 µg/m³
  • O3: 0.031 ppm
  • NO2: 4 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 5.19 µg/m³
  • O3: 0.030 ppm
  • NO2: 4.1 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.47 µg/m³
  • PM10: 5.05 µg/m³
  • O3: 0.029 ppm
  • NO2: 4 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.38 µg/m³
  • PM10: 4.64 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.2 µg/m³
  • PM10: 3.74 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.06 µg/m³
  • PM10: 3.08 µg/m³
  • O3: 0.029 ppm
  • NO2: 4 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.02 µg/m³
  • PM10: 3.14 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.1 µg/m³
  • PM10: 3.71 µg/m³
  • O3: 0.029 ppm
  • NO2: 4 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.14 µg/m³
  • PM10: 4.27 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
27 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.01 µg/m³
  • PM10: 4.3 µg/m³
  • O3: 0.030 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.88 µg/m³
  • PM10: 4.65 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.68 µg/m³
  • PM10: 4.99 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.55 µg/m³
  • PM10: 4.91 µg/m³
  • O3: 0.030 ppm
  • NO2: 2.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.